Hybrid Tea rose plant named `Ruiab`

ABSTRACT

A new variety of Hybrid Tea rose plant producing apricot-ochre flowers of good form and suitable for growing under glass.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct variety of roseplant of the hybrid tea rose class which was created by crossingundistributed, unnamed and unpatented seedlings as seed and pollenparents in De Kwakel, Holland. The varietal denomination of the newvariety is `Ruiab`. The new variety was isolated and asexuallyreproduced by budding in Holland.

SUMMARY OF THE INVENTION

Among the novel characteristics possessed by this new variety whichdistinguish it from its parents and all other varieties of which I amaware are its attractive apricot-ochre flowers of good form borne on afloriferous plant with long stems and suitable for production of cutflowers under glass. The new variety has been reproduced throughpropagation by cuttings, grafting, budding and micropropagation.

Asexual reproduction by budding of the new variety as performed in DeKwakel, Holland, shows that the foregoing and other distinguishingcharacteristics come true to form and are established and transmittedthrough succeeding propagations.

BRIEF DESCRIPTION OF THE ILLUSTRATIONS

The accompanying photographic illustrations show typical specimens ofthe vegetative growth and flowers of the new variety in different statesof development depicted in color as nearly true as it is reasonablypossible to make the same in color illustrations of this character.

Sheet 1 is a close up view of the bloom.

Sheet 2 illustrates foliage, stems, and flowers of the new cultivar atvarious stages of maturity.

DESCRIPTION OF THE NEW VARIETY

The following is a detailed description of the new variety, with colorterminology in accordance with The Royal Horticultural Society ColourChart (RHSCC) and horticultural terminology in accordance with standardterminology used in UPOV-approved horticultural guideline. Theterminology used in color descriptions herein refers to plate numbers inthe aforementioned color chart. Phenotypic expression may vary dependingupon growing conditions under different climate, soil, and cultivationconditions.

Parentage: Seed and pollen parents are seedlings.

Class: Hybrid Tea.

As can be seen in Sheet 2 there is shown a new shoot, 1; compound three,five and seven leaflet leaves, 2, 3 and 4, respectively; a stem, 5;buds, 6 and 7; a flower, 8, about one-third open; and a flower, 9, morefully open. Also shown are flower stems 10, 11 and 12, with reproductiveorgans displayed.

The following further horiticultural description is based onobservations made of specimens grown under glass in De Kwakel, Holland.

Flower

Blooming habit: Nearly continuous.

A. Bud:

(1) Size.--Medium, about 3 to 4 cm long and about 2 to 3 cm wide.

(2) Form.--Ovate (shape of longitudinal section just before separationof sepals); urn-shaped after sepals part.

(3) Color.--As sepals divide, near 15C to 15D with occasional red streakor blush.

(4) Sepals.--About same length as bud; upper side near 148C and near176A at the points; underside near 146C and near 174A at the points;spread then reflex back.

(5) Peduncle.--Long: Strength-erect, strong. Color-medium green, near146B to 146C with brownish tinge.

B. Bloom:

Flower.--Medium; viewed from above -- star-shaped; viewed from side --(a) upper part of fully opened flower, flattened convex; (b) lower partof fully opened flower, concave.

(1) Size.--Average size when fully expanded -- about 8 to 10 cm.

(2) Borne.--Singly, one to a stem.

(3) Form.--Pointed center, exhibition type, spiral imbricated, outerpetals reflex to points.

(4) Petalage.--Fully double, about 22.

(5) Color.--After sepals part and petals unfurl color of petal topsurface appears near 23C; (1/3 to full open) inner petals near 23Blighter at edge, outer petals lighter coloration. Undersurface is near19A with near 17D at base. Undersurface of aged flowers is near 27B to27C and near 17D at base. Overall tonality from a distance is attractiveapricot-ochre; upper surface of aged flower near 36B with near 17D atbase.

(6) Peduncle.--Generally smooth.

(7) Fragrance.--Weak.

(8) Length of stems*.--About 60 cm.

(9) Production*.--About 220 flowers per m² per year.

C. Petals:

(1) Texture.--Crisp.

(2) Appearance.--Inside velvety and outside satiny.

(3) Form and size.--Broad, medium, and the petal margin reflects topoints.

(4) Arrangement.--Regularly arranged, imbricated.

(5) Petaloids.--About nine, of which approximately five are about 3.5×4cm and approximately four very small approximately 2×1.5 cm.

(6) Lasting quality.--Long-lasting quality on plant and after cutting;about 15 days after cutting, about 20 days on plants.

Reproductive Organs

A. Stamens, filaments and anthers:

Arrangement and color.--Regularly arranged around styles; color offilaments -- yellow.

B. Pollen:

Color.--Orange, near 25A.

C. Styles: Long, stigma above mouth of receptacle, yellow.

D. Stigmas: Orange, positioned below anthers.

E. Hip: Funnel-shaped; medium seed vessel at petal fall.

Plant

A. Form: Narrow, bushy, average disease resistance; plant height about1.7 meters, plant width about 0.6 meters.

B. Growth: Vigorous.

C. Foliage: Compound 3, 5 and 7 leaflets.

(1) Size.--Medium width and length.

(2) Quantity.--Abundant.

(3) Color.--Juvenile foliage -- red purple to bronze-reddish; near 181Ato 181B; undersurface near 181A; weak anthocyanin coloration, (shootabout 20 cm long); mature leaf color -- near 136A top surface; near 147Bundersurface.

(4) Shape.--Broad oval.

(5) Texture.--Upper side is medium glossy underside is matte.

(6) Edge.--Serrate.

(7) Serration.--Ordinary, acuminate apices.

(8) Leaf stem.--Color -- near 147A to 147B.

(9) Stipules.--Short, simple, medium green, distinct auricle.

(10) Leaflets.--Cross section -- slight concave: weak undulation ofmargin; terminal leaflet -- short length and medium length; blade andabout 7 to 8 cm long and 5 to 6 cm wide, rounded base.

D. Wood:

(1) New wood.--Color -- young shoots have weak to medium anthocyanin;coloration -- bronze red purple to reddish brown.

(2) Old wood.--Color -- near 147A to 147B.

E. Prickles (thorns):

(1) Prickles.--Present; quantity (main stalk) -- ordinary; shape oflower side -- concave; Length -- short prickles absent or very few, longprickles few to medium; Color -- near 159A; Position -- irregular.

What is claimed is:
 1. A new and distinct variety of rose plant of theHybrid Tea rose class, substantially as shown and described.